Why does the MSN messenger feature no longer work?

Microsoft has updated LIVE Messenger 2009 in May 2010 removing some features from the application, in particular, the ability to independently show only your own webcam or your contacts' webcam (one way webcam) and without an audio call is gone. It is only possible to start a video call which starts the webcams of both people communicating and which also automatically starts audio calling.

This affects the ability of the Intellinet network camera to be used as a "web cam" in Live messenger.